Cinematographic device



Dec. 14, 1926. 1,610,719

L. T. TROLAND CINEMATOGRAPHIC DEVICE Filed August '7. 192 3 J72ve72ZZr:

Zeonard T fiolaizd' 91/? fa may Patented Dec. 14, 1926.

UNITED STATES PATENT OFFICE- LEONARD T. TROLAND, OF MALDEN, MASSACHUSETTS, ASSIGNOR T0 TEGHNICOLOR MOTION PICTURE CORPORATION, BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

,CINEMATOGRAPHIC DEVICE.

Application filed August 7, 1923. Serial No. 656,175.

This invention relates tofilm-guide means for use in cinematographic machines and particularly to a film-guide for use in a machine (such as disclosed for example in Serial No. 512,399, filed Nov. 2, 1921) for printing color film where the eomplemental images must be accurately positioned relatively to each other, the object of the inventlon being to guide the film smoothly and accuratel along a predetermined path and to provide a facile and precise adjustment of the guiding means.

For the purpose of illustrating the invention one concrete embodiment thereof is shown in the accompanying drawings, in which Fig. 1 is an end elevational view;

Fig. 2 is a front elevational View;

Fig. 3 is a plan-view partly in section of the roller and bracket; and

Fig. 4 is a rear elevational view of the parts shown in Fig. 3.

The embodiment of the invention shown for the purpose of illustration comprises a guide roller A supported for rotation upon a bracket B in turn attached to any suitable support C along the film passageway of a printer or other cinematographic machine. The roller A has shoulders in the form of end flanges 5 and acentral reduced portion 6 so that only the edges and the marginal portions of a film D (Fig.' 1) are engaged thereby as the film passes over the roller,

Roller A is mounted for free rotation upon a shaft 7 supported in suitable hearings in s aced ears 8 and 9 rojecting from the eongate bracket B. oller A is held in fixed axial position. upon shaft 7 by suitable means such as collars 10 pinned or otherwise made fast to the shaft. Sufficient clearance is provided between collars 10 and ears 8 and 9 to ermit axial adjustment of the roller. T is axial adjustment is rovided by a threaded openin for sha t 7 in ear 9 and a threaded portion 7 upon the shaft to cooperate with the threaded opening. The end of shaft 7 adjacent the threaded portion has a crosscut 11 to permit easy turning of shaft 7 by means of a screw-driver or other fiatblade tool. Shaft 7 is retained in adjusted position by any suitable means such as a clamping screw 12 extending through bracket B to engage the threaded portion of the shaft as indicated in Fig. 3. For F the purpose of strengthening bracket B, ribs 13 and 14 may be provided thereon and rib 13 may be enlarged in the form of a boss at 13- around the opening for the clam ing screw 12. Bracket 13 may he attac ed to its support G by screws or bolts 15 extending through openings 16 and 17 in the upstanding portions 18 and 19 of the bracket. Opening17 is in the form of a slot to permit angular adjustment of the bracket B, and hence of the roller- A, upon support C.

In assembling the device the small end of shaft 7 is passed through the threaded opening in ear 9 and as it extends into the 7 space between ears 8 and 9 one of the collars 10 is first slipped thereover, then the roller A, then the other collar 10, and when the threaded portion of the shaftreaches ear 9 the shaft is screwed into osition with its reduced end passing throng the bearing in ear 8. Collars 10 are then pinned or otherwise made fast to the shaft to retain the roller A in fixed position thereon. The assembled device may now be mounted by means of bolts or screws 15 upon theapparatus on which it is to be used, the slot 17 permitting angular adjustment of' the bracket and roller. After the angular ad- 'ustment is properly maderoller A may e moved axially by turning shaft 7 with a screw-driver fitted to the end-cut 11 until roller A is accurately in position. Clamping screw 12 is then set up and the device is ready for use.

The device is particularly useful ina machine where the film path turns and where the film must be accurately positioned on one or both sides of the turn, as, for example, at 1 and 4 of aforesaid application, Serial No. 512,399. I

I claim: 1. In a cinematographic machine, a filmguide extending transversely of the film path and having shoulders engaging the opposite edges of the film, a support, means for adjusting said guide edgewise of the film, and means for angularly adjusting said film-guide.

2. In a cinematographic-machine, a filmguiding roller extending transversely of the film path and having shoulders engaging the opposite edges of the film, a support, means for adjusting said guide edgevvise of the film, said means including a threaded adjuster having its axis concentric with said roller, and means for angularly adjusting said film-guiding roller.

3. In a cinematographic machine, a filmguide extending transversely of the film path and having shoulders engaging the opposite edges of the film, a stud for said guide extending edgewise of the film, a support having threaded engagement with said stud, means on the stud for restraining movement of said guide longitudinally of said stud, and means for angularly adjusting said film-guide. 5

4. In a cinematographic machine, a support, a shaft mounted in the support for axial adjustment, a fihn-guiding roller mounted on said shaft for rotation but held against axial movement relatively to the shaft, and means for angularly adjusting the film-guiding. roller.

5. In'acinematOgraPhic machine, ashaft,

' a support for said shaft, a film-guiding roller rotatable on said shaft but retained in fixed axial position thereon, and means for adjusting said shaft axially and angularly relatively to said support.

6. In a cinematographic machine, a shaft, a support having a bearing for said shaft, a film-guiding roller rotatable on said shaft, spaced collars fast on said shaft to retain said roller in fixed axial position thereon, means for adjusting said shaft axially in its bearing, and means for adjusting the position of at least one of said bearings relatively to said support.

7. In a cinematographic machine, a shaft having a film-guiding roller rotatably mounted in fixed axial position thereon, one endof said shaft .being threaded, a support having a threaded opening to receive said threaded end of said. shaft whereby said shaft is adjustable axially upon said support, and means for angularly adjusting said film-guiding roller relatively to said support. e 1 I 8. In a cinematographic machine, ashaft having a film-guidingroller rotatably mounted in fixed axial position thereon, one end of said shaft being threaded, a support having a threaded opening to receive said threaded end of the shaft, means for looking said shaft in adjusted position, and means for adjusting the angular position of the shaft relatively to said support.

9. In a cinematographic machine a support, a film-guiding roller rotatably mounted upon said support, means for axi ally adjusting said roller about an axis perpendicular to theplane of its axis, and means for angularly adjusting said roller.

10. In a cinematographic machine, a support having spaced ears, said ears having aligned openings forming bearings, a shaft supported in said beari ngs, a film-guiding roller rotatable in fixed position on said shaft, one of the bearings for said shaft being threaded to cooperatewith a threaded portion of said-shaft to permitaxial adjustment of said shaft and roller, a set screw arranged 'to engage the threaded portion of said shaft tovretain said shaft in adjustedposition, and at least one of said ears adjustable relatively to said support.

11. In a cinematographic machine, a filmguiding 'roller a shaft on which said roller isrotatablv supported, a bracket having bearings supporting said shaft-, and spaced openings in said bracket for attaching the latter to a..support, one of said openings comprising a slot to permit angular adjustment of the bracket relative to the support.

Signed by me at Boston, Massachusetts,.

this 27th day of July 1923.

LEoNAhD T. TROLAND. 

